Free Alibaba Cloud ACA-Database Practice Exam with Questions & Answers | Set: 2

DMS

Data Works

MaxCompute

QuickBl

When you purchase a PolarDB cluster, you don't need to specify the storage capacity you want to purchase

PolarDB supports both OLTP and OLAP scenarios very well

The PolarDB database engine won't require you to replicate data when adding read-only nodes

ApsaraDB for PolarDB uses the pay-as-you-go billing method, therefore you only need to pay for the storage resources you actually use

Re-migrate all schemas

Re-migrate the failed schemas

Migrate the schemas that require a manual revision but have not been revised

Customize schema migration

MongoDB is a relational database.

MongoDB is a document database.

MongoDB supports transactions.

MongoDB can be deployed in cluster mode.

DTS cannot be used for incremental database synchronization

DTS supports multiple database engines

DTS can migrate both data and table schema

DTS works for database both on and off Alibaba Cloud

Redo log

Rollback log

Binary log

Error log

Read/write splitting

Load balancing

Health checks for nodes

Failover strategies for high availability

Data encryption

PolarDB MySQL

PolarDB PosgreSQL

PolarDB Oracle

PolarDB Box

De-Oracle workload evaluation

Data structure conversion

Data migration

Performance monitoring

Interactive analysis

Batch processing

Online transaction processing

Stream or micro-batch processing